Ecosystem:Forum Software

Discourse

Provider -- Civilized Discourse Construction Kit, Inc.
Website -- https://www.discourse.org/
License -- open source (GPLv2)
Interoperability level -- explicitly supports PostgreSQL 9.5 or higher
Verified PostgreSQL versions -- didn't actually run the program, but just checked the documentation
Last update (YYYY-MM-DD) -- 2017-4-6
Description -- Discourse is the 100% open source discussion platform built for the next decade of the Internet. It works as a mailing list, a discussion forum, and a long-form chat room.
Additional info -- click here

Provider -- eXo Platform
Website -- https://www.exoplatform.com/
License -- open source (LGPL) and proprietary
Interoperability level -- explicitly supports PostgreSQL (no specific version is specified)
Verified PostgreSQL versions -- didn't actually run the program, but just checked the documentation
Last update (YYYY-MM-DD) -- 2017-3-13
Description -- eXo Platform is an all-in-one open-source digital collaboration platform that provides knowledge, document and content management, social engagement, and project collaboration tools integrated into your business’s applications.
Additional info -- click here

Provider -- FluxBB
Website -- https://fluxbb.org/
License -- open source (GPLv2)
Interoperability level -- explicitly supports PostgreSQL (no specific version is specified)
Verified PostgreSQL versions -- didn't actually run the program, but just checked the documentation
Last update (YYYY-MM-DD) -- 2017-4-6
Description -- FluxBB is an open-source forum application released under the GNU General Public Licence. It is free to download and use and will remain so. FluxBB was conceived and designed to be fast and light with less of the "not so essential" features that some of the other forums have whilst not sacrificing essential functionality or usability.
Additional info -- click here

Provider -- FUDforum Bulletin Board Software
Website -- http://fudforum.org/
License -- open source (GPLv2)
Interoperability level -- explicitly supports PostgreSQL 8.1 or higher
Verified PostgreSQL versions -- didn't actually run the program, but just checked the documentation
Last update (YYYY-MM-DD) -- 2017-4-6
Description -- FUDforum is a forum software written in PHP.
Additional info -- click here

Provider -- MyBB Group
Website -- https://mybb.com/
License -- open source (LGPLv3)
Interoperability level -- explicitly supports PostgreSQL 8.1 or higher
Verified PostgreSQL versions -- didn't actually run the program, but just checked the documentation
Last update (YYYY-MM-DD) -- 2017-4-6
Description -- MyBB is a forum software. MyBB powers hundreds of thousands of engaging, powerful, and unique communities across the internet.
Additional info -- click here

Provider -- phpBB Limited
Website -- https://www.phpbb.com/
License -- open source (GPLv2)
Interoperability level -- explicitly supports PostgreSQL 8.3 or higher
Verified PostgreSQL versions -- didn't actually run the program, but just checked the documentation
Last update (YYYY-MM-DD) -- 2017-4-6
Description -- phpBB is a free open-source bulletin board written in PHP. Millions of people use phpBB on a daily basis, making it the most widely used open source bulletin board system in the world. Whether you want to stay in touch with a small group of friends or are looking to set up a large multi-category board for a corporate website, phpBB has the features you need built-in.
Additional info -- click here

Provider -- PunBB
Website -- http://punbb.informer.com/
License -- open source (GPLv2+)
Interoperability level -- explicitly supports PostgreSQL 7.0 or higher
Verified PostgreSQL versions -- didn't actually run the program, but just checked the documentation
Last update (YYYY-MM-DD) -- 2017-4-6
Description -- PunBB is a fast and lightweight PHP-powered discussion board. Its primary goals are to be faster, smaller and less graphically intensive as compared to other discussion boards. PunBB has fewer features than many other discussion boards, but is generally faster and outputs smaller, semantically correct XHTML-compliant pages.
Additional info -- click here

Provider -- Simple Machines
Website -- http://www.simplemachines.org/
License -- open source (New BSD)
Interoperability level -- explicitly supports PostgreSQL 8.0 or higher
Verified PostgreSQL versions -- didn't actually run the program, but just checked the documentation
Last update (YYYY-MM-DD) -- 2017-4-6
Description -- Simple Machines Forum (SMF) is an Internet forum software.
Additional info -- click here